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HelioCast: heliospheric forecasting based on white-light observations of the solar corona

Poirier, Nicolas; Kouloumvakos, Athanasios; Indurain, Mikel +8 more

We present a new 3D magnetohydrodynamic (MHD) heliospheric model for space-weather forecasting driven by boundary conditions defined from white-light observations of the solar corona. The model is based on the MHD code PLUTO, constrained by an empirical derivation of the solar wind background properties at 0.1 au. This empirical method uses white-…

Assessment of CESE-HLLD ambient solar wind model results using multipoint observation

Feng, Xueshang; Wei, Fengsi; Li, Huichao

For a three-dimensional magnetohydrodynamics solar wind model, it is necessary to carry out assessment studies to reveal its ability and limitation. In this paper, the ambient solar wind results of year 2008 generated by the CESE-HLLD 3D MHD model are compared with multipoint in-situ measurements during the late declining phase of solar cycle 23. …